Khan, Z.S., Shaikh, S.M. and Ade, A.B. 2010. Effect of pH on Metal Extraction From Bauxite Ore by <i>Thiobacillus Ferrooxidans</i>. Journal of Scientific Research. 2, 2 (Apr. 2010), 403–406. DOI:https://doi.org/10.3329/jsr.v2i2.4020.